This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Ex-1.21.) Tissue is a collection of cells that are similar in function and structure.2.) Organ consists of two or more types of primary tissues organized to perform a particular function.3.) Simple squamous- It consists of flattened cells that function in diffusion, absorption, filtration, and secretion. Example- it is found in lining of alveoli, parts of kidney, lining of blood vessels.Stratified squamous - It consists layers of epithelial cells stacked on one another. It is found in areas that have lot of wear and tear and acts as a barrier to foreign substances . Example- it is found in mouth, esophagus, nasal cavity, outer skin covering (epidermis, keratinized).Columnar - It consists of cylindrical cells in shape of columns. Example- it is found in lining of gastrointestinal tract for absorption. Pseudo stratified - It consists of simple columnar cells that are characterized by hairlike cilia. Example- it is found lining the trachea and bronchial tubes.4.) The common characteristic of connective tissue is the abundance of extracellular material, matrix, in which the cells are dispersed. 5.) (a) Tendons and ligaments.(b) Dense connective tissue.(c) Joints of bones, nose, trachea, bronchi.(d) Symphysis pubis, intervertebral discs. 6.) Striated muscles7.) Smooth muscle8.) (a) The epithelium of skin is made up of the simple squamous epithelial cells which are tightly packed and stacked above one another. These layers of epithelial cells act as barriers to foreign substance and protect the underlying tissues. It also contains the sweat glands that help in cooling through evaporation....
View Full Document
- Spring '08